In our assembly instructions you will find an overview of the different bed sizes and the number of components used in each case on page 5. How to remove or add components (rhombuses) is explained on page 6.
Size S to size M
Starting from the delivery state size S, you need a total of 6 additional rhombs to reach the delivery state size M. You therefore need three extension sets.
Size M to size L
Two S-beds are needed, which are connected to form a large L-bed. Please buy an additional S-bed and convert your old M-bed back to the size of an S-bed. Unfortunately, the conversion is not possible with the help of one or more extension sets. To convert the M-bed back to an S-bed (in each case as delivered), 6 rhombs must be removed from the M-bed.