---
title: "Custom Daybed Covers & Cushions: Mattress Sizes, Backs, Bolsters"
url: "https://cushionguide.com/cushions/daybed-cushions/"
section: "The Cushion Atlas"
author: "Hana Lindqvist, The Quiet Geometer of Seattle"
author_url: "https://cushionguide.com/masters/hana/"
published: "2026-01-26"
updated: "2026-09-24"
keywords: "daybed cover, daybed cushion, daybed mattress cover, custom daybed cover, fitted daybed cover with zipper, daybed back cushions, twin daybed cover, daybed bolster"
---

# Daybed covers and cushions, measured from the mattress up

*A daybed is a sofa in the morning and a bed at night. Its cushion has to be honest about both.*

> **The quick answer:** A daybed cushion is usually a fitted, zippered cover made to the exact length, width and thickness of the mattress, from twin (about 38 x 75 in) and twin XL (38 x 80 in) to full or queen. Back cushions about 20 in (50 cm) tall and a bolster at each end turn it into a sofa by day. Measure the mattress, not the frame.

![Black faux leather daybed cushion with bolster used as an armrest, pale linen pillows and knit throw on a walnut plinth](https://cushionguide.com/media/daybed-cushions/black-faux-leather-daybed-bolster-armrest-walnut-1536.webp "Black leather-look fabric on a warm walnut plinth, softened by three pale linen pillows and a chunky knit throw.")

## Sofa by day, bed by night

A daybed is a twin-size bed framed on three sides. By day it is a sofa. By night it sleeps one, and sometimes a trundle underneath sleeps a second.

The cushion is a mattress in a tailored jacket. A [fitted daybed cover](https://cushionguide.com/glossary/#fitted-daybed-cover) wraps the mattress like a box cushion, with a band as deep as the mattress. Back cushions stand against the wall. Bolsters take the arms. A platform daybed with no mattress takes one thick cushion cut to the deck.

It suits guest rooms, studios and the corner of a small apartment where a sofa and a bed will not both fit. For the IKEA frame many buyers own, see [Hemnes daybed covers](https://cushionguide.com/cushions/ikea-hemnes-daybed-covers/). For the room, [bedroom bench and daybed cushions](https://cushionguide.com/cushions/bedroom-cushions/).

## Daybed cushion sizes, measured on the mattress

Measure the mattress once the daybed has arrived and the mattress is in it. Mattresses sold under one size name still vary.

| Mattress or deck | Typical size | What to send |
|---|---|---|
| Standard twin | About 38 x 75 in (97 x 191 cm) | Length, width and thickness |
| Twin XL | About 38 x 80 in (97 x 203 cm) | The same three numbers |
| Thick twin (real order) | 39 x 75 x 12.5 in | Thickness at the fullest point |
| Two stacked mattresses | One cover at the combined height, e.g. about 31.5 x 79 x 12 in (80 x 200 x 30 cm) for two 6 in (15 cm) layers | One cover around both, or one each |
| Platform deck (real orders) | 37 x 76.5 in; 91.5 x 31 x 6 in | Deck size and the thickness you want |
| Back cushions | About 20 in (50 cm) tall on daybed sets | Measured from the top of the seat |
| Trundle | Its own mattress, its own cover | A second set of three numbers |

## The box, the band and the zipper

A daybed cover is a box. Top and bottom panels are joined by a band as deep as the mattress, and the zipper usually runs around two corners so the mattress slides in. It hides on the back edge, against the wall.

The cover is made about ½ in (1 to 2 cm) under the measured thickness. The fabric gives a little. The cover sits snug instead of loose.

Piping draws the outline. Self piping is calm; contrast piping, dark on mushroom taupe or navy on ivory, pulls the eye to the edge. Corduroy daybed covers have no piping by design. A tufted daybed mattress is another build: fiber-filled, tufted by hand, sewn closed. For zipper choices, see [where the zipper goes](https://cushionguide.com/guides/cushion-zipper-placement/).

## Fabric for sleeping, not only sitting

Skin touches a daybed. Choose with that in mind.

- Smooth, breathable soft fabric is the workshop's answer for hot summers and overnight guests: not scratchy, not plush. It looks close to linen, without slubs or pile.
- [Linen-look weaves](https://cushionguide.com/fabrics/linen-look-fabrics/) carry most of the colors in our gallery, raspberry to sage.
- [Linen and cotton-linen](https://cushionguide.com/fabrics/linen-and-cotton-linen/): most standard 'linen' charts are blends, so ask for the 100% linen chart if pure fiber matters.
- [Velvet](https://cushionguide.com/fabrics/velvet/), for a daybed that is mostly a sofa.
- [Faux leather](https://cushionguide.com/fabrics/faux-leather/), like the black cushion in our hero photo, for wipe-clean sitting.
- [Jacquard and damask](https://cushionguide.com/fabrics/jacquard-and-damask/) for pattern, such as a gray hexagon weave.

On a screened porch or an open terrace, start in [outdoor acrylic](https://cushionguide.com/fabrics/outdoor-acrylic/).

## Foam, thickness and a surface that stays put

Most daybed mattresses already belong to the buyer, and the workshop makes the cover. When it makes the cushion too, the foam is high-density and cut slightly larger than its cover so the cover looks full.

Height is a feeling. On a bare platform, 4 in is the workshop standard for seats, and floor beds of 6 or 8 in sit higher off the floor. Check where the seat lands with the [seat height calculator](https://cushionguide.com/studio/seat-height-calculator/).

On smooth wood, add a non-slip base. It replaces the whole bottom panel with a grippy fabric that holds by friction, not adhesive, and it is safe on wood. On a daybed set only the seat cover goes in the machine; filled back cushions do not.

## A yellow daybed for hot summers

A buyer in the US wanted a yellow daybed cushion that guests could sleep on through hot summers. Nothing scratchy. Nothing plush. The workshop matched the color in its breathable soft fabric with self-colored piping, made it 23 5/8 x 79.5 in, and moved it forward for a July deadline.

The courier left the parcel in an unsecured lobby, and it disappeared. The workshop opened a carrier claim and remade the cushion.

Two lessons. Choose a smooth, breathable fabric for a surface people sleep on. Give the courier secure delivery instructions.

## Where daybed orders go wrong

- ✗ Quoting a small cushion when the deck needs a large one. One buyer asked for two 18 x 32 in pieces, then measured the whole daybed at about 74 x 36 in.
- ✗ Measuring the frame, or the old cover, instead of the mattress.
- ✗ Leaving out the thickness. A maker may assume a double-layer depth.
- ✗ Forgetting the trundle. Its mattress needs its own cover.
- ✗ Laying a cushion on a smooth wooden top with nothing to grip.
- ✗ Choosing fabric by color alone. A guest who sleeps on it notices a scratchy weave first.

> A daybed cover follows the mattress, not the frame: send its length, width and thickness, and the cover is cut about 1/2 in under that thickness to sit snug.
>
> — Hana

## Styling it as a sofa, and what to read next

Keep it simple. One cover, a row of back cushions, a bolster at each end, one accent pillow. Back cushions about 20 in tall stand against the wall and stop the seat reading as a bed; two cover a twin-length daybed. A bolster, like the black one in our hero photo, becomes the arm.

Which should people notice first: the cushion, or the room around it?

Read [custom daybed mattress covers](https://cushionguide.com/guides/daybed-mattress-cover-measurements/) before you measure and [styling a daybed like a sofa](https://cushionguide.com/guides/daybed-back-cushions-sofa-look/) before you choose backs. [Bolster pillow sizes](https://cushionguide.com/guides/bolster-pillow-size-diameter/) covers the arms, and [ties, non-slip base or velcro](https://cushionguide.com/guides/stop-bench-cushion-sliding-ties-nonslip/) covers a cushion that wanders.

A sofa by day.
A bed by night.
One cover, measured once.

> **Tailor's margin:** Measure the daybed mattress after it arrives and sits in the frame. A cover cut to the frame, or to the old cover, will not sit right.

## Indoor daybed or porch swing bed?

Searches for a twin daybed cushion often mean the platform of a porch swing bed, not an indoor frame. The measuring is the same: the platform or mattress deck, wood to wood, plus the thickness you want, usually about 4 in. What changes is the fabric and how the cushion stays put. A swing bed lives outside, so order it from the outdoor range, which is water-repellent and UV-resistant rather than waterproof, and ask for ties at the corners where the chains or frame are, since swinging walks a loose cushion off the platform. Bring it in or cover it during storms and over winter, because the standard foam doesn't dry quickly. For the swing bed's back and side pillows, the porch swing guides cover sizes.

## Buyer questions

**A common question:** Which fabric stays coolest on a daybed in a hot summer? Nothing scratchy or plush, please.

**The workshop's answer:** Soft fabric. It's smooth, soft and breathable, so it won't feel scratchy or hot for guests sleeping on it. The base and the piping can be the same color or contrasting.

**A common question:** Can you make a daybed cover to fit the mattress I already have?

**The workshop's answer:** Yes. Covers are made to your mattress, twin, full or queen: write its length, width and height in the personalization box, ideally measured once the daybed has arrived. The height can be raised too; a 31½ x 78¾ in (80 x 200 cm) cover was made 11¾ in (30 cm) high so two 6 in (15 cm) mattresses stack inside. A trundle mattress needs its own cover.

**A common question:** Is one long daybed cushion cheaper than two smaller ones?

**The workshop's answer:** Usually about the same, because price mainly follows the total surface. Separate pieces add cutting, sewing and zippers, yet on one daybed two 36.5 in squares came in below one 74 x 36 in cushion of the same area. Very long cushions, around 108 in and up, are made in two pieces anyway.

**A common question:** Does the non-slip bottom come standard, or is it extra?

**The workshop's answer:** It's an optional add-on, not standard, and it's available on daybed cushions as well as benches, window seats and trapezoids. The cost scales with the cushion size. Note 'non-slip base' and your exact size in personalization, and the workshop includes it in your quote or sends a link for the difference.

**A common question:** Why does a tufted daybed mattress cost more than a plain one?

**The workshop's answer:** Tufting is done fully by hand, so real quotes ran about a third to a half above the same size in plain foam. Tufted daybed mattresses with a round bolster are made through the tufted listing; if that's over budget, a non-tufted foam cushion is the cheaper route.

**A common question:** Is your linen fabric 100% linen?

**The workshop's answer:** Usually not. The standard linen charts are blends or linen-look fabrics, chosen because they're durable and easy to clean: the linen-look codes are polyester, and other ranges are linen-polyester or cotton-linen. A separate 100% linen chart and 100% cotton fabrics are available on request.

## Before you measure

### Do I need a twin or a twin XL daybed cover?

Measure the mattress. A standard twin is about 38 x 75 in and a twin XL about 38 x 80 in, five inches longer. Mattresses sold under the same name still vary, so send the real length, width and thickness.

### How tall should daybed back cushions be?

About 20 in (50 cm) on daybed sets, measured from the top of the seat cushion. Standard back pillows elsewhere run about 16 in (40 cm), and the workshop won't go lower than that for support reasons.

### Can a daybed cover go in the washing machine?

The seat cover, yes: it unzips completely and washes on a gentle cycle at 86°F (30°C) or lower. The filled back cushions and bolsters on a daybed set are not machine washable, so spot-clean them.

### Why is the cover a little smaller than my mattress?

On purpose. Fitted mattress covers are made ½ to ¾ in (1 to 2 cm) under the measured thickness because the fabric stretches slightly. The result is a cover that sits snug instead of wrinkling along the band.

### Can a daybed cushion live on a screened porch?

Yes, in the right fabric. A fully covered porch can take regular fabric; anywhere rain or damp can reach, use outdoor-rated fabric. The ivory cushion with navy piping in our gallery sits on a wicker daybed in a screened porch.

### Will a daybed cushion slide on a wooden platform?

It can. Lightweight foam on a smooth top moves when you sit. A non-slip base grips by friction and is safe on wood, while ties work where there is a rail to tie to. Ask for either when you order.

## Related at the atelier

- [Daybed Cushion in Forest Green Faux Leather, Styled from Above](https://cushionguide.com/readings/forest-green-faux-leather-daybed-top-view/): A saturated daybed cushion, like this forest green faux leather, works when every other surface stays a warm neutral and the color is echoed once, in art or a plant, on the same wall.
- [Daybed Cushion in Mauve: Where to Spend and Where to Save](https://cushionguide.com/readings/mauve-cushion-carved-french-daybed-arched-window/): On a daybed cushion, spend on the cover fabric and the back support, and save by keeping a mattress that is still sound.
- [Can one cover fit two mattresses stacked on my daybed?](https://cushionguide.com/answers/one-cover-for-two-stacked-mattresses/): One zippered cover can enclose two stacked mattresses: order it at the mattress length and width plus the combined height of both.
- [Can you make a cover with elastic, like a fitted sheet, instead of a zipper?](https://cushionguide.com/answers/fitted-elastic-cover-instead-of-zipper/): No, mattress covers are made with a zipper only, not with elastic like a fitted sheet.
- [Standard cushion sizes, and when yours isn't one of them](https://cushionguide.com/guides/standard-cushion-sizes-chart/): Standard cushion sizes are store conventions rather than rules: US chair pads run about 15 to 18 in square, twin daybed mattresses 38 x 75 in (97 x 191 cm), chaise cushions about 72 to 75 x 22 to 24…
- [Van conversion cushions: build the frame, then measure seat, back and bed](https://cushionguide.com/concepts/van-conversion-and-skoolie-cushions/): Order van conversion cushions only after the frame is built, and measure the seat and back separately, because they are rarely the same width.
- [How to measure an IKEA Hemnes daybed: two stacked mattresses, one cover](https://cushionguide.com/guides/ikea-hemnes-daybed-cover-measuring/)

*— Hana*

---

Written by Hana Lindqvist (https://cushionguide.com/masters/hana/) for CushionGuide (https://cushionguide.com/about/). The site explains made-to-measure cushions and the partner workshop makes them; measurements are in inches first. This Markdown mirrors the page at https://cushionguide.com/cushions/daybed-cushions/