Is the top real solid wood or veneer?

The table is listed as solid wood throughout, top and legs. That puts it above the veneer-over-particleboard tables common at this size, though grain and tone vary from piece to piece.

How big is the tabletop?

It is a round top on a compact end-table frame. Measure the gap beside your sofa or bed before buying, since a round top loses usable surface at the edges compared with a square one.

Does it have a shelf or drawer?

No. It is a single round top on four wood legs with no drawer, shelf or stretcher, so plan on a separate basket or tray if you need storage.

How hard is assembly?

Expect to attach the legs to the top with the included hardware. There are no drawers or moving parts, so assembly is short, but solid wood parts are heavier to hold in place than hollow ones.

Will it work as a nightstand?

Yes, if your bed sits at a typical height and you only need room for a lamp, phone and book. It has no drawer, so anything more needs a separate organizer.

How should I care for the wood?

Dust with a dry or slightly damp cloth and use coasters under drinks. Avoid leaving standing water on the finish and keep it out of direct sun, which can fade or dry the wood.