The Air Optix (6 pack) is an extended wear contact lens type, meaning that it allows you to sleep in them if you want to, for up to 6 days in a row. The feeling that you don’t necessarily have to take them out at the end of every long day can make you more relaxed, feel more comfortable in itself, even if you usually take them out nonetheless.
Even though most people have no problems sleeping in contacts, there are many of us whose eyes just can’t bear it, so make sure you visit an optometrist before choosing to change to extended wear lenses.