Don't use lawn mower blades.I hear you on air blowing on me when sleeping, but definitely not the overhead ceilng fan. I'm paranoid about a big machine whirling blades over me when sleeping I guess. So we have an upright fan at foot of bed doing its job. Plus I keep a bedroom window cracked about 1/2 inch at night no matter the temp outside, even in the teens. I gotta have fresh air and air moving.