If you've watched the first few episodes of Love Island already, then you'll know that islanders can only share a bed in the room with the person they are coupled up with. So when one islander starts dating an islander from another couple, they are not allowed to share a bed and will sleep on either the couches or the daybeds outside until the next recoupling ceremony, where they can couple up officially (if they make it that far). Singles will also retreat to the daybeds if they have a falling out with their partner.