Short answer: a squeaking bed is almost never the mattress. It is one of three joints — the bolts holding the side rails, the slats rubbing against the frame, or the headboard kissing the wall. Tighten every bolt to 8–10 Nm, stick 2 mm felt pads wherever wood meets wood, and re-check the torque after 30 days. The whole job takes five minutes and costs less than a sandwich.
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Beds are the only piece of furniture you climb into while half asleep, which is why every creak feels louder at 2 a.m. than it does at noon. The good news: a squeak is a diagnostic gift. It tells you exactly which joint has given up before anything breaks.
Step one: reproduce the noise on purpose
Do not lie down and wiggle vaguely. Push the bed frame at the foot corner, then at the head corner, then press down hard on the middle of the mattress. Three tests, three different answers:
| Where the noise comes from | What is actually moving | Fix | Cost |
|---|---|---|---|
| Foot or head corner, rhythmic | Side-rail bolts backing out | Re-torque to 8–10 Nm, add a split washer | €0 |
| Middle, dry crackle | Slats rubbing the ledger rail | 2 mm felt or cork pads under each slat end | €6 for 30 |
| Headboard, knocking | Frame against wall or skirting | Two adhesive bumper pads on the back rail | €4 |
| Constant thrum, worse on rugs | Floor contact / hollow floor | Felt glides under all four legs | €5 |
Step two: the bolt torque nobody teaches you
Most flat-pack bed frames use M6 bolts with a barrel nut. Hand-tight is around 4 Nm; the joint needs 8–10 Nm to stay quiet under a 90 kg sleeper turning over 40 times a night. That is a quarter-turn past firm with a normal hex key, or two fingers on a small ratchet. Overdo it and you crush the particleboard around the nut, which is worse than leaving it loose.
Bed frames are also the one place where thread-locker earns its keep. A drop of medium-strength (blue) compound on each bolt means you do not repeat this ritual every three months. Do not use the permanent red stuff unless you enjoy never disassembling the bed again.
Step three: kill the wood-on-wood contact
Slats are supposed to flex; they are not supposed to grind. If your frame has a rigid ledger rail, every slat end is a 20 cm lever rubbing on one edge. Felt pads under both ends of every slat take fifteen minutes and remove 80% of the noise in most beds. Cork works too, and survives humidity swings better in a bathroom-adjacent bedroom.
- Check slat spacing. More than 8 cm between slats and the mattress sags into the gaps, which loads the frame unevenly and makes the whole thing creak.
- Check slat bow. Slats are crowned upward. Flip one by accident and it will click forever.
- Check the centre rail. Beds 160 cm and wider need a centre support leg. A missing one is a squeak today and a cracked rail in two years.
When it is the floor, not the bed
On suspended timber floors, a bed in the middle of the room bounces the boards and the whole frame sings. Move the bed 10 cm, or put a 6 mm rubber anti-vibration pad under each leg. On a rug, expect more noise, not less — wool fibres grip and release, which is exactly how a squeak is born.
The 30-day re-torque
New frames settle. Wood dries, particleboard compresses, and bolts that were tight in the showroom are finger-loose by week four. Put a reminder in your phone for 30 days after assembly and check the eight bolts that matter: four corner brackets, two centre-rail fixings, two headboard bolts. Ninety seconds, once, and most beds stay silent for years.
If the squeak survives all four steps, the frame has a cracked rail or a stripped insert. That is not a tightening problem any more — and it is worth catching while the bed is still under warranty.
Keep reading
More dimension guides are in the collection, and the full index is on the furnolio journal.
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