A king bed is genuinely more comfortable than a queen. Two adults each get the space of a Super Single, with room for a pet or a child on weekends. So why would anyone choose a queen? Because in a typical HDB master bedroom, a king leaves no room to walk, no room for bedside tables, and turns your bedroom into a bed with a door.
The sizes
Singapore mattress sizes are close to but not identical to international standards. Here are the numbers that matter:
- Super Single: 107 × 191cm
- Queen: 152 × 191cm
- King: 183 × 191cm
- Super King / California King: 198 × 203cm (rare, custom, needs a bigger room than any HDB offers)
A king is 31cm wider than a queen — roughly the width of a laptop. That's not a lot in isolation. But in a 3m-wide bedroom, it's the difference between a walkway and no walkway.
Typical HDB master bedroom dimensions
A typical HDB 4-room master bedroom is roughly 3m × 3.2m. After a built-in wardrobe (~60cm deep), you have 2.4m of usable width. A queen (152cm) leaves 88cm — enough for a walkway on one side and a bedside table on the other. A king (183cm) leaves 57cm — barely enough to squeeze past, nothing for furniture.
Executive apartments, 5-room flats, and condos often have master bedrooms of 3.5m × 4m or larger. A king fits here without compromise.
The 60cm walkway rule
Sleep-interior guides consistently recommend at least 60cm of clear floor between the bed and the nearest wall or wardrobe, on both sides. This isn't luxury — it's the minimum space you need to get out of bed without turning sideways. When one partner needs to use the bathroom at 3am, that walkway is the difference between a groggy bathroom trip and a stubbed toe.
Where a king fits
A king makes sense if any of these apply:
- Your master bedroom is 3.5m wide or more (typical of executive/5-room or condo)
- Your wardrobes are freestanding or in a separate walk-in, not eating into the bedroom footprint
- You regularly co-sleep with children or pets and have felt cramped on a queen
- One partner is tall (over 185cm) and hangs off the end of a queen
Where a queen is the right call
A queen is the default for 4-room HDB flats, and there's no shame in it:
- Room is 3.2m wide or narrower
- Built-in wardrobe along one full wall
- You want room for two bedside tables (not negotiable — don't skip these)
- Your budget is tight (queen mattresses and sheets cost 20–30% less than king)
Side tables: can you still fit them?
Side tables are 40–50cm wide and 35–45cm deep. If your room is 3m wide and you pick a king (183cm), you have 117cm left after the bed. Split across two sides, that's ~58cm per side — fits a side table, barely, with no walkway clearance. Compromising.
Frame considerations
Storage bed frames (with drawers or a lift-up base) are popular in HDB homes because they reclaim under-bed space. They add 5–10cm to the overall bed height, which is fine — but they're heavier, harder to move, and more expensive than platform frames. If you need the storage, go storage. If not, a simple platform frame is lighter on the room visually.
See the Bedside Table →

