Public cloud environments are multi-tenant and VMs share the physical server which can result in VMs fighting for resources. Because a bare metal cloud is made up of dedicated servers, this problem is avoided.
People with sleep apnea often wake up suddenly due to shortness of breath. Upon waking, they may also choke, snort, or gasp. You may not even be aware of some of these symptoms while you sleep, but waking up feeling out of breath is a strong indicator that you have sleep apnea.
If you're reading about shortness of breath, you may be confused by all of the terms used to describe this symptom. A quick run down of some of these terms include: Dyspnea refers to the sensation of shortness of breath. Tachypnea refers to rapid breathing with or without a feeling of being shortness of breath.