Almost too close for a 40/90 mattress (same brand).

Quite stiff elastic but which wraps well around the mattress. I have measured the mattress of the nacelle but I should have maybe taken a size above for the length because the mattress being soft it folds a little but the elastic will relax I think. Good product anyway.

All right, fine.

Perfect, the size of the 50x83 sheet fits perfectly with my 50x90 cradle.

Delighted by the material, the size that perfectly fits the small mattress of the basket and the service