Mamas and Papas cots have 3 mattress sizes which are reffered to as sim200 sim300 and sim400 or also as size 200 size 300 and size 400.
The mattresses that fit these sizes are
- Size 200 120 x 60cm
- Size 300 126 x 62½cm
- Size 400 139 x 69cm
The main mattress size being 139 x 69cm which is only 10mm different than the standard size cot bed mattress which is 140 x 70cm which fits perfectly in mamas and papas cots and cot beds.
The sizes below will fit well into a Mamas & Papas cot or cotbed Size 400 and are common cot bed mattress sizes
- 140 x 70cm
- 140 x 69cm
- 139 x 70cm
- 139 x 69cm
The sizes below will fit well into a Mamas & Papas cot or cotbed Size 300 and are common cot mattress sizes
- 126 x 62.5cm
- 126 x 63cm
- 126 x 64cm
- 127 x 64cm
The Standard is that a mattress should fit snug into the base of the cot or cotbed but not be too tight as to cause the cot side to jam, or be too tight to fit sheets easily, if yoy push the mattress to one side of the cot bed the gap should be no more than 4cm as a rule, the same for the head and foot end if you push the mattress up to the head end of the cot the gap at the foot end again should be no more than 4cm.