You should also remember that guys are not as sentimental as women. Women tend to look at it differently - that is a blanket SHE gave him, it has meaning -or- that is the mattress they slept on together. Where in a mans eyes it is probably just a blanket and just a mattress. He may not have even thought about it or remembered until you brought up these issues. Men are so darned blind about this stuff sometimes, lol