How often do I need to change baby's bedsheets?

I change my baby's bedsheet once per week and vacuum the mattress once per month to remove dust mites. For me, I believe if by just washing the bedsheet it is not enough, thus I invested in dust mite vacuum. My brand is Delphine ($3k) and nowadays there are many other brands which has this function and much cheaper, e.g. Philips Mite Vacuum Cleaner which costs less than $300. http://www.philips.com.sg/c-p/FC6232_02/mite-cleaning-vacuum-cleaner If your baby has allergies, it is recommended to change at least 2 times per week.

Try to wash at least once a week. Babies may be exposed to dirt around the house as they crawl around to explore their surroundings. Instead of specific baby laundry detergent, you can consider the Ecover Zero series that is formulated for people with sensitive skin (we often neglect that chemicals from the laundry detergent may linger on the clothes and may be too harsh for sensitive skin). http://ecover.com.sg/collections/laundry/products/zero-laundry-liquid

We change bedsheets at least once a week or if I feel there's something causing irritation to our skin and nose. We do this not just for the babies but also for me because I have allergies. We also use vacuum every other week to get rid of dust and other particles in the area.

i used to change my baby's bedsheets every alternate day. i always used fresh sheets once in 2 days. till now i do the same, and my kids are now 3 and 9. it really helps to avoid any dust allergies.

thanks

Once a week is not bad if the baby didn't poo on it

Once or twice a week is better :)

once a week mostly

Every other day

every other day