On this page you will find the Ethereal Spaces - Sleep ringtone in several versions, all free to download. Artist: Cumulus Flow. There are 8 versions, from 21 to 32 seconds long. If you like ambient and new age ringtones, see the tags below. Two formats are available: .MP3 for Android and other phones and .M4R for iPhone. All ringtones by Cumulus Flow are collected on the artist page.