5. I use 2 and my husband uses 3. I do have a bedding set that has 3 decorative pillows, so when that’s on the bed I have 8, but the 3 decorative pillows are just used for show. I wish I hadn’t bought them. Money not well spent.
Throw pillows and other decorative pillows I find to be a pain. Just more work.
Throw pillows in hotels I especially hate. They wind up in the floor and tables and chairs where suitcases and shoes have been and they aren’t washed between every customer so basically they are dirty things being put on a clean bed, and usually that’s against the clean pillowcase that you are going to put your face on. Yuck.