AppAdvice has teamed up with Arnt-Henning Moberg in order to offer you a chance to win one of 10 promo codes for Sleep Bug Pro ($1.99) for iPad, iPhone, and iPod touch.

Designed to calm you through the use of ambient sounds, Sleep Bug Pro features various soundscapes that can help you sleep better and keep you relaxed during work. Although, you may already have an app for that. So, why should you care about this new option? Flexibility, and we’re not just speaking of the 22 different scenes to choose from.

Within each scene is a combination of sounds, which Sleep Bug allows you to enable and disable as desired. For example, you can stick with the very minimal Classical compilation or add in up to three more instruments for an even stronger white noise experience.

In addition, Sleep Bug Pro can be used with other apps because it plays in the background, displays a beautiful image, date and time, as well as includes a built-in timer for automatically stopping playback.

If you’d like to give it a try, just download Sleep Bug. This free version contains the same functionality as the Pro version except with a portion of the content.

To have a chance at winning one of four Sleep Bug Pro promo codes, just hit that tweet button near the bottom of this page or retweet this post from your favorite Twitter app before Oct. 16 at 11:59 p.m. PDT. We will then search the Twitterverse for all of the retweets and randomly choose our lucky winners. The winners will be notified via Twitter, so please be sure to follow us so we can send you your promo code via a direct message.

Non-Twitter users and those of you who want to increase your odds of winning can leave a relevant comment below before 11:59 p.m. PDT tomorrow to have a chance at winning one of the other six Sleep Bug Pro promo codes. If you do make an entry via the comments area, please be sure to also check your junk email boxes so that you won’t miss out if you win.

Feel free to participate in the giveaway via either or both methods. Only one entry per person per method is allowed, totaling up to two entries per person if using both.