Since a large portion of the internet depends on AWS, the outage cascaded across major firms in disparate industries, leaving some people unable to access airline information or make everyday purchases, Qi Liao, a professor of computer science at Central Michigan University, told ABC News.

A major AWS outage Monday morning caused problems with many of the largest sites on the internet for several hours. And it's not the first time.

Amazon Web Services, a cloud computing service run by Amazon, experienced a significant outage that disrupted numerous websites on Oct. 20.

Perhaps one of the most avoidable breakdowns came via people’s beds. The reliance on the Internet for smart bed products from Eight Sleep resulted in people being awoken by beds locked into inclined positions and sweltering temperatures.

Some Eight Sleep mattress users had a rude awakening after the Amazon Web Services outage, with reports of beds stuck upright and haywire temperatures.

The outage underscored a central trade-off of cloud computing: while it lets businesses deploy global services without maintaining vast infrastructure, it concentrates risk. A problem in a single region—like Northern Virginia—can cause widespread, simultaneous outages for unrelated companies worldwide.

Amazon Web Services is down, and the ripple effect is huge. The cloud giant’s outage has knocked out everything from Snapchat to Reddit to online banking apps.

A major outage has hit the internet just as Brits prepare to head to work for a new week. The issues are disrupting websites, apps, and services across the globe this morning. The problems seem to trace back to an issue with Amazon Web Service (AWS). It has confirmed that it is experiencing issues this morning (October 20).