We paid for a Finnish style box here in the UK. Baby fairly rapidly outgrew it with 3 months or so, but not before he started to wake us up by hitting his arms

We paid for a Finnish style box here in the UK. Baby fairly rapidly outgrew it with 3 months or so, but not before he started to wake us up by hitting his arms on the side and making a thumping noise. We were warned by some pros to make sure to monitor the temperature closely - don't leave it on the floor where it might be too cold, and allow air to circulate to avoid it getting too hot etc. We bought a cheap Ikea side-table that was approx the same size and built a basic barrier around the edge by screwing in some shelf supports to the side-table (as well as some up-stands on the table surface to allow air to circulate) so that it was basically like any other bassinet thing you can buy. Price-wise we probably mad a loss compared to just buying something prebuilt, but I think my wife quite liked me "building a bed for baby". The box is now used as a toy box! We'll certainly get another one for the next baby.