Standard crib
IKEA SUNDVIK crib
The crib most parents end up looking at first: a standard 27.5 × 52 inch footprint, white finish, $299.99. IKEA's listing confirms the mattress size and the type but does not publish the material, the mattress position count or an age range, so those rows are blank here rather than guessed. It takes a standard crib mattress, which matters more than any other spec because a badly fitting mattress is the actual safety risk.