The Cushion Atlas · Daybeds & floor beds

Custom floor mattresses for toddlers, sleepovers and play

Children like to be low. A floor mattress keeps them near the ground and near you. These are the sizes, heights and covers past orders have settled on.

Atlas entry by Hana

The Quiet Geometer of Seattle · February 27, 2026 · Updated September 24, 2026

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Orchid pink covers with ivory piping turn a Hemnes daybed into a story-time sofa and sleepover bed in a playroom. The pink repeats in the toy bins and the round rug.

The quick answer

A custom floor mattress is foam in a zippered, washable cover, cut to fit a toddler floor bed, a loft-bed nook or a sleepover corner. Common sizes run from 24 x 70 in (61 x 178 cm) under a loft bed to about 38 x 75 in (97 x 191 cm) for a twin. Order by the mattress's own size, not the frame height.

Shapes to choose from

Every one is cut to your measurements. The number is how many readings the atelier has published for that shape.

Sizes & measuring

Sizes, inches first

Measure the mattress, or the platform it sits on: length, width, thickness. The frame height does not matter.

Under a loft bed	24 x 70 in (61 x 178 cm) or 27 x 70 in (69 x 178 cm); lengths of 70-75 in (178-191 cm) are routine
Twin floor mattress	About 38 x 75 in (97 x 191 cm)
Kids' foam play bed	35 x 75 in (89 x 191 cm), 45 x 75 in (114 x 191 cm) or 55 x 79 in (140 x 201 cm), mattress included
Floor sofa for a 2-year-old	24 x 50 in (61 x 127 cm) if the room allows; 28 x 60 in (71 x 152 cm) sets include backrest and armrests
Mini crib mattress as play mat	A zippered cover for 37.75 x 23.75 x 3 in (96 x 60 x 7.5 cm) foam
Taller sleepers	A 30 x 73 in (76 x 185 cm) set suited someone 5 ft 9 in (175 cm); longer sizes are made to order

A bed that starts at the floor

A custom floor mattress is a foam mattress in a removable zippered cover, made to a size you give. Parents use one in a wooden toddler floor bed, under a loft bed, as a sleepover bed, or as a play mat on the rug. The cushions are solid enough to sit or lie on and comfortable to sleep on.

For a proper toddler bed there is also a kids' foam play bed that includes its mattress. For children who want to sit as much as sleep, see kids' floor sofas and kids' room cushions.

One note, kept plain. For a baby's crib, go by the crib maker's mattress size, and keep pillows, bolsters and soft extras out of it. The pieces on this page are for toddlers and older children.

Shapes, corners and edges

Most floor mattresses are plain rectangles. That is a good thing. Rectangles rotate and flip, and they wear evenly.

When a floor bed has rounded corners or a curved end, the workroom will not guess the curve from numbers alone. Send a drawing with the total width and depth, the straight length before each curve and the curve's depth. Or trace the platform on wrapping paper and photograph it flat beside a tape measure. Rounded corners and oval seats has the detail.

A box edge with self-piping holds a neat outline; no piping keeps it soft. Oatmeal and warm beige from the linen chart disappear into most rooms.

Fabrics for small sleepers and sticky hands

Children test a cover harder than anyone. Pick a fabric you will not mind washing often, because you will.

Linen-look weaves: calm oatmeal and beige tones.
Corduroy: the soft plush of floor sofas.
Bouclé and teddy: warm under a cheek, better for lounging than for crayons.
Performance and pet-friendly weaves: for the family that also has a dog.

Every cover unzips and machine washes at 86°F (30°C) on a gentle cycle. Air dry it. The foam stays out of the machine. More in kid-friendly cushion fabric.

Open a swatch family

Open a family for its swatch book, care notes and neighbors.

Foam and thickness, kept low

For small children, lower is kinder. A floor sofa mattress is about 6.5 in (17 cm) of medium-hard 28 kg/m³ foam that softens slightly with use. A toddler floor bed turned reading seat settled on 4 in (10 cm) of the firmer 2.0 lb/ft³ (32 kg/m³) foam. A 6 or 8 in (15 or 20 cm) mattress sits higher off the floor.

Most floor pieces arrive vacuum-packed and rolled, flat and small at first. Unwrap every piece. Most reach their photographed shape in about 36-48 hours and full firmness in 3-5 days, sometimes a week.

Height is a feeling. Firm enough to crawl across, soft enough to nap on. Measure it from the child's side of the bed.

A real project

A toddler floor bed that became a loveseat

A parent in the US wanted to turn a wooden toddler floor bed into a small loveseat for reading. The platform was 53.5 x 29.5 in (136 x 75 cm), on a frame 21 in (53 cm) high. The questions were the right ones: how thick, how firm, how many pieces.

Two layouts fit. A 5-piece set in linen with contrast piping, a seat, two back cushions and two side bolsters, looked fuller and cost about double a seat with one long back bolster. Only the cushions' own dimensions mattered, not the frame height. The parent settled on 4 in (10 cm) of the firm 32 kg/m³ foam.

Measured: Platform 53.5 x 29.5 in; frame 21 in high; 4 in thick
What it taught: Send the cushion's own dimensions; more pieces look fuller and cost more.

Small mistakes with floor beds

Sending the frame height instead of the mattress size. Only the cushion's own length, width and thickness matter.
Judging a vacuum-packed mattress in its first hours. Flat and folded is normal; give it 36-48 hours, and up to 5 days for full firmness.
Laying a floor mattress on bare hardwood. A rug or grip mat underneath stops the slide.
Typing a non-slip base or ties into the size box. Write add-ons in the order note, then confirm by message.
Waiting to fix a wrong size. Message quickly: dimensions can be corrected before the piece is finished, rarely after.

Photographs from the workbench

Open any photograph large; each one has its own link and a Save button.

Two toddlers playing with a wooden stacker on an ivory corduroy corner floor cushion under a lilac canopy, jute rug below — Pale corduroy invites play, and the low profile lets little ones climb on and off without help.

Baby stacking rainbow rings on a sage corduroy corner floor cushion under a cream canopy, toddler playing on jute rug — The cushion is low enough for a baby to sit on top while an older sibling kneels beside it on the rug.

Mother and two toddlers on a large navy corduroy corner floor cushion, one asleep with a teddy, under a cream canopy — Three people fit on this cushion at once, which says more about its size than a measurement could.

Mauve textured box cushion with self piping on a carved cream French daybed with knit throw and linen pillow — A mauve box cushion made to fit a carved cream French daybed, softened with a knit throw and a linen pillow.

Toddler lying on a mustard corduroy corner floor cushion under a sage green canopy with star and flower pillows, plush fox — Mustard corduroy and a sage canopy make a warm, sunny corner that a small child can stretch out on full length.

Rust orange corduroy star floor pouf with sage star and cream cloud pillows under a white canopy in a bright nursery — Rust cord brings earth tones to a white nursery, answered by a sage star pillow and the monstera leaves nearby.

Sage green corduroy corner floor cushion with star, pink flower and white cloud pillows under a wooden wall ledge — Sage corduroy, a wooden ledge with a plant and two framed prints turn a bare corner into a proper reading nook.

Sage green linen-look angled window seat cushion with self piping in a child's bay window, open picture book and slippers — A sage cushion cut to the bay angle makes a reading perch in a child's room, with books kept low and within reach.

Gray corduroy corner floor cushion on white walls with cream star, rust flower and blue cloud pillows, gray rug and books — Without a canopy, the curved gusset and wide wale take center stage, and the safari prints and toy crate do the rest.

Rust corduroy kids floor sofa with a yellow daisy pillow and powder blue star, seen low behind building blocks and a toy car — A low camera shows the chunky ribs on the rust sofa's stacked blocks and wedge back.

Overhead view of a toddler resting her head on the bolster arm of a cream corduroy floor sofa, blocks and a book nearby — The bolster arm sits at just the right height for a floor-level rest.

Order a toddler floor bed cushion by the platform, not the frame: 53.5 x 29.5 in and 4 in thick told the whole story; the 21 in frame height did not.
Hana

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Styling a floor bed, and the tools before you order

Keep the corner quiet. In one of the photographs here, a rust corduroy star pouf with a sage star pillow and a cream cloud pillow is all the color a bright nursery needs; the walls and the canopy stay white.

Where does your child actually read? Put the mattress there, not where it looks tidiest.

Check heights with the seat height calculator. Then read kids' floor sofas: sizes by age, sleeping on a floor sofa and covers only for foam you already own. Nook ideas live in closet and under-loft-bed nooks and play tents and crash pads.

Buyer questions

A common question
Can a child sleep on a floor cushion, and what size should I get?
The workshop's answer
Yes. The cushions are solid enough to sit or lie on and comfortable for sleeping, and many buyers use them as sleepover beds. Under a loft bed, 24 x 70 or 27 x 70 in is typical, and 70-75 in lengths are made routinely; a twin is about 38 x 75 in. A 6 or 8 in thickness sits higher off the floor. For a proper toddler bed, the kids' foam bed is the better fit.
A common question
What size floor sofa or play bed suits a 2-year-old?
The workshop's answer
The workshop suggested a 24 x 50 in floor sofa if you have the space. A larger 28 x 60 in set includes the backrest and armrests. The kids' corner sofa cushion is 39 x 39 in and can be made to a custom size, and the kids' foam play bed, mattress included, comes in 35 x 75, 45 x 75 and 55 x 79 in.
A common question
Can you make a washable zippered cover for a mini crib mattress we use as a play mat?
The workshop's answer
Yes. A removable, fully zippered box-style cover for a 37.75 x 23.75 x 3 in mini crib mattress is no problem, and a 61 x 61 x 10 in crash pad cover has been quoted with a long zipper for easy removal. Order through the cover listing, pick the size range, and write the exact size and fabric code in the personalization box. Say whether you want piping.
A common question
Can you make a set for a toddler bed platform, with a seat, backs and bolsters?
The workshop's answer
Yes. Send the seat size, length by depth by thickness, and how many bolsters and back pillows you want; only the cushions' own measurements matter, not the frame height. For a 53.5 x 29.5 in platform, both a 5-piece set and a seat with one long back bolster fit; the 5-piece looks fuller and costs more. Everything ships filled unless you ask for covers only.
A common question
The floor mattress arrived flat and folded. How long until it looks right?
The workshop's answer
That is expected with vacuum-compressed, roll-packed foam. Unwrap every piece. Most fill out in 24-36 hours and reach the photographed shape in about 36-48 hours, with full firmness after 3-5 days, occasionally a week. Shaking the pieces by hand helps. If one is still flat after another 4-5 days, the shop sends replacement foam.
A common question
I picked the wrong color right after checkout. Can it still change?
The workshop's answer
Usually, yes, as long as the order hasn't shipped; the shop checks with production first. Message the exact color name or number from the chart. Dimensions can also be corrected if you are quick, as one mattress was updated to 75 x 38 x 8 in, but a finished custom piece usually can't be altered, so send final sizes early.

Have it made

Have your floor mattress made — ask Hana’s workshop

Leave your numbers and the height you like to sit at. The rest is a short conversation. — Hana

Leave your details and the workshop will call you to confirm measurements, fabric, foam and piping. No prices, dates or payment on this page: it is a request, not an order.

Fabric · Foam · Pipingwhat the workshop will confirm with you

Fabric: The cover cloth: weave, color and care code.
Foam: A zippered cover for 37.75 x 23.75 x 3 in (96 x 60 x 7.5 cm) foam
Piping: The corded seam edge: matching, contrast or none.

Name

Phone Only for this request: no marketing calls or texts. Outside the US, add the country code.

Best time to call optional

What to make optional

Measurements optionalIn inches: length × depth × thickness, plus any angles or cut corners.

Notes optional

* Required. A member of the workshop team will call you to talk it through; nothing is charged and nothing is made until you have agreed on every detail with them.

We use these details only to answer this request and make your cushion: your name and contact details, the cushion details and photos you send, the page you came from and the ad or link that brought you, if any. The workshop that makes the cushions receives them. We don't sell them or share them for advertising, and we delete requests after 24 months. Privacy notice for requests.

Nothing is made or charged until you approve the details.

Want to pick the shape and add photos? Use the full quote form

Questions buyers ask next

Does the height of the toddler bed frame change the cushion order?

No. Only the cushion's own dimensions matter: the length, width and thickness of what sits on the platform. A 21 in high frame and a floor-level frame take the same order if the platform is the same size.

How do I keep a floor mattress from sliding on hardwood?

Put a rug or grip mat underneath. If the piece has metal support bars, fit felt pads or fabric under them so they neither slide nor scratch the floor. A non-slip base can be requested in the order note.

Can a floor mattress have rounded corners or a curved end?

Yes, from a drawing or a template. Give the total width and depth, the straight length before each curve and the curve's depth, or trace the platform on wrapping paper and photograph it flat beside a tape measure.

Can two floor cushions make one bigger bed?

Yes. Two 63 x 27.5 in (160 x 70 cm) pallet-style floor couches placed side by side have made a double bed. Longer custom sizes are made for taller sleepers, too.

What if the floor mattress arrives the wrong size?

Send a photo with a tape measure along the full edge, and keep the wrong piece until you hear back. In past cases the workshop remade the piece or offered a partial refund instead.

Can the floor mattress cover go in the washing machine?

Yes. The cover unzips completely and machine washes at 86°F (30°C) on a gentle cycle; air dry it rather than tumble drying. The foam itself is not washed.

Is a floor cushion safe for a baby to nap on?

Not for infants. US safe-sleep guidance says a baby should sleep on its back in a crib, bassinet or play yard holding only a fitted sheet, and a baby who falls asleep somewhere else should be moved to one. Play couch makers also set age minimums and label their products not for sleeping. Floor beds are for toddlers and older children.

How long does a compressed floor mattress take to recover its full shape?

Small pieces recover in a few hours and most cushions within one to three days, though full recovery can take up to a week; play couch makers quote one to two weeks for every wrinkle to relax. Unpack it within a few days of delivery, take the cover off, and knead or stretch the foam to help it along.

— Hana

The Cutting Table

Buyers asked about crib, toddler & floor bed mattresses

Can you make a washable zippered cover for a crash pad or a crib-mattress play mat?Answered by Élodie

Every answer at the Cutting Table

The Pattern Room