People stare at the velvet headboard until their eyes water, ignoring the foundation underneath. They miss the slats. That is where the real damage happens. A gap wider than seven centimetres cuts the life of your mattress short. You pay for premium foam, then watch it sag into the void. It is a silent killer in the bedroom. Most people do not know this.
Solid wood frames hold up better than metal grids in this humid weather. But the spacing decides everything. If the gaps are too wide, the foam compresses permanently. You cannot fix a broken mattress. That is family wisdom passed down. You bought one already, then had to change it. The warranty does not cover sagging from your own frame. Humidity softens the glue inside the slats. Particleboard slats swell and rot faster than solid timber.
Look for five to seven centimetre gaps on the frame before you sign. Some shops sell wide spacing to save timber. Do not fall for that one. A 152 by 190cm Queen fits most HDB master bedrooms, but needs support. The slats must be centre-to-centre, not just touching the wood. Wide gaps feel airy, but they do not last. Check the lift door clearance too. You cannot turn a wide frame around the corner.
Get a solid base. It is worth the extra cost lor. A 3-room BTO bedroom is small enough that you need every centimetre of support. Do not compromise on the frame. You will regret it later.