Quick answer
For most kids' rooms, choose the Stargazer Deluxe King Single: it gives a growing child extra length without eating up floor space. Choose Double for a guest room or a single adult, and King only when the room can comfortably fit the larger footprint and you want maximum shared sleeping space.
Why the King Single is the default for kids' rooms
A King Single is longer than a standard single, so it suits children who are still growing without forcing you into a wider bed. It leaves more floor space for toys, desks and wardrobes than a Double or King, which matters in smaller bedrooms.
The trade-off is that a King Single still sleeps one person. If the room doubles as a guest space, you may want to size up.
When a Double makes more sense than a King Single
A Double is wider than a King Single, so it gives an adult or teenager more shoulder room and works for couples who are used to a compact bed. It also gives a guest room a more established feel.
The cost is floor space. Before choosing Double over King Single, measure the room with the bed in place and check that doors, drawers and walkways still work.
The King decision: space versus sleeping room
A King is the widest option here and suits main bedrooms where two adults want more personal space. It is rarely the right first choice for a child's room because the extra width takes over the floor plan.
If you are comparing King Single vs King mattress size, the key difference is width rather than length: the King Single keeps a narrow footprint, while the King prioritises shared comfort.
What the Stargazer Deluxe range does not decide for you
The Stargazer Deluxe King Mattress is made to order in Melbourne with local and recycled materials and steel springs, and it is available in multiple sizes. The catalog does not publish a size comparison chart, so you should measure your room and existing bed frame before ordering rather than relying on assumptions.
Because the mattress is made to order, size and option choices are worth getting right the first time. Use the decision rules below to narrow your shortlist before you buy.
Stargazer size decision rules
- Child's first 'big bed': Choose King Single when the room is under about 3 m × 3 m or you need to keep floor space for play and study. It gives extra length without the width of a Double. Measure the free wall first; if a Double would leave less than 70 cm of walkway, stay with King Single.
- Teenager or single adult: Choose Double if the room can fit the wider frame and the sleeper wants more shoulder room than a King Single provides. Check that bedside tables and wardrobe doors still open fully with a Double in place.
- Guest room: Choose Double for couples who visit regularly, or King Single if the room is small and usually hosts one guest. Decide whether the room needs to sleep one or two people before comparing prices.
- Main bedroom for two adults: Choose King when the room can accommodate the widest footprint and shared sleeping comfort is the priority. Choose Double only if the room is tight. Leave at least 60 cm of walking space on both sides of a King if you want easy access.
- King Single vs King size check: Compare width, not length: King Single keeps a narrow single footprint, while King adds substantial width for two sleepers. If you are sizing for one child, the King is almost always more bed than the room needs.
Product facts to know
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Stargazer Deluxe King Mattress: The Stargazer Deluxe King Mattress is made to order in Melbourne with local and recycled materials and steel springs. Because each mattress is built after you order, confirm your size choice and room measurements before purchase rather than expecting to swap later.
Stargazer Deluxe King Mattress
Who each size suits
Best for
- Kids' rooms where floor space and growth room both matter
- Guest rooms that usually host one person
- Teenagers or single adults who want a wider bed without a King footprint
Not for
- Couples who want maximum shared sleeping width
- Very small rooms where even a King Single leaves no walkway
- Buyers who have not measured the room and bed frame first
