What a guest room mattress needs to do#

A guest bed has a unique brief: it's used occasionally, by people of all shapes, sizes and sleeping positions, and you don't want to overspend. The goal is broad comfort and reliable support at a sensible price, not a top-of-the-range bed tuned to one person.

Aim for medium-firm, the universal choice#

Because you can't tailor a guest mattress to one sleeper, pick the firmness that suits the most people. The evidence is clear that medium-firm best supports comfort, sleep quality and spinal alignment across the general population,1 which makes it the safest pick for back, side and front sleepers alike.

Where to save, and where not to#

  • Save on: brand name, plush extras and premium covers, occasional use doesn't justify them.
  • Don't skimp on: support and basic durability. Cheap, low-density foam softens fast, while quality foams hold their feel for years.2
  • Consider a topper: a medium-firm mattress plus a topper lets guests adjust the feel.

Value brands we rate for guest rooms#

  • The Foam People: made-to-order all-foam mattresses from around £109, with custom sizes, ideal if your spare room has an odd-sized frame. See our review.
  • Luxe (Majestic range): hand-built British models that reach budget territory on sale, with a 100-night trial and 10-year warranty. See our review.
  • Emma (on sale): the popular bed-in-a-box rarely sells at full RRP, a polished medium feel most guests will find comfortable.

Practical tips#

  • Pick a size up if space allows, a double or larger suits couples and is more versatile than a single.
  • Add a breathable protector to keep an occasionally used mattress fresh, see our protector guide.
  • Air it before guests arrive if it's been stored or rarely used.

Browse medium-firm mattresses or our best budget mattress guide, or take our quiz for a value-matched pick.

References#

  1. Caggiari G, Talesa GR, Toro G, Jannelli E, Monteleone G, Puddu L. What type of mattress should be chosen to avoid back pain and improve sleep quality? Review of the literature. Journal of Orthopaedics and Traumatology. 2021;22:51. doi:10.1186/s10195-021-00616-5
  2. Vlaović Z, Klarić N, Domljan D. Investigating the Impact of Long-Term Use on Mattress Firmness and Sleep Quality: Preliminary Results. Applied Sciences. 2024;14(21):10016. doi:10.3390/app142110016