Komfi Serenity Comfort Reflex Single Mattress in a Box
The Komfi Serenity Comfort Reflex Mattress in a Box has a firm reflex foam build with a recycled foam base, which means you get steady, supportive sleep in a mattress that arrives rolled up.
- Firm feel for back sleepers
- Recycled foam in the build
- Washable cover & no flipping
£192.35
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
Komfi Serenity Comfort Reflex Mattress in a Box
More available sizes
Mattress details
Mattress
Komfi Serenity Comfort Reflex Mattress in a Box
Size
Firmness
Firm
Construction
Eco-Friendly
Foam
Rolled
Depth (cm)
20
Layers
Layer Details
Key benefits
- Leaves room for everything else: At 90cm wide, a UK single lets a child's room hold a desk and wardrobe alongside the bed, and we suggest at least 2.1m x 2.8m of floor space.
- A clear depth for raised frames: Komfi gives a depth of 20cm, which is the figure to check against the maximum mattress depth your bunk, cabin or mid-sleeper frame allows.
- Two beds for guests: A pair of UK singles in a spare room gives visiting friends or siblings a bed each, and the firm foam suits back sleepers who like to feel held up.
- Easy to clean in a young person's room: The zipped cover comes off and goes in the washing machine, which means spills and muddy feet in a child's or teenager's room are simpler to deal with.
- Manageable up awkward stairs: It arrives vacuum packed and rolled, so you can carry it up a tight loft staircase and unroll it under a sloping ceiling where only a narrow bed fits.
This size suits you if...
You sleep alone and prefer a firm surface, or you're furnishing a child's bedroom or bunk bed where every bit of floor space matters. It also fits if you want a pair of beds in a spare room that has to stay usable as an office between visits.
Consider another size if...
You share the bed with a partner, or you're an adult who sprawls and wants room to turn. We'd recommend the UK double instead, which gives 67.5cm each for two sharing and needs at least 2.6m x 2.8m.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
Will the Komfi Serenity Comfort Reflex UK single fit a bunk bed?
The UK single is 90 x 190cm, the standard footprint for bunk and cabin beds in the UK. Komfi gives a depth of 20cm. Raised frames set a maximum mattress depth so the guard rail stays effective, so check your frame maker's guidance against that 20cm figure before you buy.
What size bedroom do I need for a UK single mattress?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single. That leaves room to walk round the bed and open drawers or a wardrobe. If the room also needs a desk or toy storage, measure where each piece will go before you order.
Is a UK single long enough for a teenager?
The UK single is 190cm long, the same length as the UK double. If a tall teenager needs more length, the UK king is 10cm longer, although it's also 60cm wider, so it only makes sense in a much bigger room. For most teenagers the UK single's length is the standard choice.
What sheets fit the Komfi Serenity Comfort Reflex single?
Standard UK single sheets fit, along with a single duvet at 135 x 200cm. Single bedding is the most widely stocked of any size. With a 20cm depth, choose a fitted sheet whose pocket depth comfortably covers 20cm so the corners stay put.
Can I put two Komfi Serenity singles in a guest room?
Yes, two UK singles side by side give each guest their own 90cm wide bed, and they can be pushed together if a couple visits. Measure the room with a walkway between the beds in mind, and compare the retailers listed on this page if you're buying a pair.