Mattress
Ikea Hafslo Sprung Mattress
Size
Firmness
Construction
Foam
Rolled
Latex
Depth (cm)
Layers
Layer Details
Cover
Stretch fabric on topside of the mattress moves with you to maximise comfort
Top Layer
Foam comfort layer
Layer 2
Open coilBonnell springs
- Proper space for two: At 75cm each for two people sharing, you both get room to stretch and turn without negotiating for territory every night.
- Length for taller sleepers: The UK king runs 10cm longer than the UK double at 200cm, which means anyone approaching 6ft finally stops sleeping with their feet at the edge.
- A big bed at a small price: The Hafslo sits at the budget end of the market, so upgrading to a UK king costs far less than it would with most sprung mattresses.
- Room for the dog too: If a pet on the bed is part of the routine, the extra 15cm of width over a UK double stops that habit costing you your own space.
- One thing to weigh up: The Hafslo uses open coil Bonnell springs, which tend to pass movement across the bed, so the wider size helps but won't fully mask a restless partner.
This size suits you if...
You share the bed every night and a double now feels like a compromise, you or your partner is approaching 6ft and needs the 200cm length, or you're kitting out a master bedroom on a tight budget and want the biggest Hafslo made. Allow at least 2.7m x 2.9m of floor space and it should sit comfortably.
Consider another size if...
Your bedroom is smaller than the 2.7m x 2.9m we suggest for a UK king, or you mostly sleep alone. The UK double of this mattress would suit you better, and it needs a slightly smaller room, 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.
Is the Ikea Hafslo UK king big enough for a couple?
Yes, comfortably. It measures 150 x 200cm, giving 75cm each for two people sharing, which is 15cm more width between you than a UK double offers. One caveat: the Hafslo's open coil Bonnell springs can transfer movement across the mattress, so a very restless partner may still be felt, even with the extra space.
What room size do I need for the Hafslo in a UK king?
We suggest allowing at least 2.7m x 2.9m. That leaves enough space to walk round the bed and open drawers or wardrobe doors without shuffling sideways. In a new build master bedroom, measure carefully once you've accounted for fitted wardrobes, as these rooms often feel smaller than the floor plan suggests.
Is the UK king Hafslo long enough for someone over 6ft?
It should be. The UK king is 200cm long, which is 10cm more than the UK double, so a sleeper around or just over 6ft gets clear space beyond their feet. For couples where one partner is tall, this extra length is often the real reason to size up, rather than the width.
Will the Hafslo king help if my partner gets up earlier than me?
The extra width helps, since 75cm each means less chance of being disturbed by movement nearby. That said, the Hafslo's Bonnell open coil springs are connected across the mattress, so getting in and out does travel through the bed more than pocket springs would. It reduces disturbance rather than removing it.
Where can I buy the Hafslo UK king at the best price?
Compare the retailers listed on this page; the prices shown here are updated as retailers change them, so what you see reflects current availability. The UK king is the largest of the three sizes the Hafslo comes in, and typically the most expensive of them, though the whole range sits at the budget end of the market.







