As others have said, it depends on the RE you are working with. Some say no bedrest, others say two full days.
I was on two full days (day of transfer and entire day after - couldn't even take a shower). Some say they were active after transfer and it took, some say they laid flat in bed, and it took...I would definitely lay around, would not get on a flight until at least two days after transfer, and would take it easy for awhile. But that's just based on my former experience, and we worked with a clinic who has some of the best success rates in the country. I guess my opinion is, it can't hurt to be on bed rest? Whatever you and your IPs and your RE want to do, is best. Especially your RE.
Wife, Mom, GS x 2