My brother, sister-in-law and their 3 month old son are moving to from the east coast to the west coast in February. The baby currently sleeps in a co-sleeper, which works out well for them. They are hiring movers to move their belongings and are flying out to their new town. Their belongings may take a couple of weeks to arrive. Any suggestions on what type of crib/sleeper they could get that they would be able to check as luggage and use as a bed for the 3-month old for a few weeks?

I checked out Mrs. Bee's guide to travel cribs but I'm not sure any of those would work well for an extended period of time. Thoughts?