Bedding gear (mattress + duvet + pillows + sheets)

I came to stanford for a 5 month research visit and now I have to leave. My sleeping gear are for sale:

standard twin-size bed Mattress, dimensions 96.5 cm wide by 190.5 cm long with a mattress pad cover and two fitted sheets one for summer and one for winter -> 50$

Duvet, 4 season, big size (for a king size bed) , plus cover -> 20$

2 pillows plus cover -> 20$

if you take all I can give a good discount. The pick up would be August 27th or 28th as my flight back home is on 28th morning.