Is already quite light-coloured wood

Theoretically, any bed base should fit, but only a roll-up base makes sense. With a normal slatted frame plus mattress, you will quickly be higher than the safety rail. Even with a slatted frame and mattress, there are only a few centimetres left until you reach the safety barrier

We bought a slatted frame separately and everything fits in perfectly.

According to our information, the product has no net.

No, the article is without a net.

Yes, the roof is only 'leaned' against the structure by means of wooden dowels. It is certainly not the safest solution, but this allows it to be removed easily. Then, of course, the visible holes will remain.