Would this work to put under a sheet in a crib to keep babies bed warm?

They do work for an outside feral cat I am caring for. I put a sheet under a blanket to keep cat warm and it is warm. but cat was scared of the the crunching sound. I used one blanket and it keeps you warm. I believe putting one under baby blanket would help keep baby warm.

Are these puncture proof? Do they tear easily?

Compared to similar mylar blankets, they are sturdier and longer lasting. However, they will puncture, and they will tear. They are not like regular blankets, not like tarps or similar things. They are not made for rough handling, but for heat and protection while sleeping or in emergency situations.

How many microns in thickness?

don't know the micron. it does have a mesh-like structure, almost like ripstop. it is light and durable. thicker than what foil balloons are made of but thinner and more flexible than tinfoil. I have worn it in -30 F and its worked wonders.

Odd question. can these block radio interference? i have a neighbor who plays with a cb radio and i pick up his transmissions and it's annoying.

Hell no . You need copper . Copper blocks all radio frequency

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ANMEILU Emergency Mylar Thermal Blankets -Space Blanket Survival Kit Camping Blanket (4-Pack). Perfect for Outdoors, Hiking, Survival, Bug Out Bag ,Marathons or First Aid

ANMEILU Emergency Mylar Thermal Blankets -Space Blanket Survival Kit Camping Blanket (4-Pack). Perfect for Outdoors, Hiking, Survival, Bug Out Bag ,Marathons or First Aid

Product ID: 726595213

Details

Brand
QIO CHUANG
Color
orange
Material
Polyethylene
Special Feature
Waterproof
Style
Compact

🎒Compact & lightweight packable

💧Waterproof & windproof shield

🔥Retains 90% body heat

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$47.30

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Description

🔥 Stay warm, stay ready — your ultimate survival sidekick!

HEAT LOCK TECHNOLOGY - Reflective mylar traps up to 90% of your body heat, keeping you warm when it matters most.
ULTRA COMPACT DESIGN - Fits effortlessly into any backpack, bug-out bag, or car emergency kit without adding bulk.
DURABLE WEATHERPROOF - Crafted from thick polyester with waterproof and windproof properties for reliable outdoor protection.
EASY CARE READY TO GO - Machine washable and reusable, ensuring your emergency kit stays fresh and ready for action.
VERSATILE SURVIVAL ESSENTIAL - Use as a blanket, emergency shelter, ground cover, or poncho—your all-in-one outdoor lifesaver.

The ANMEILU Emergency Mylar Thermal Blankets 4-pack offers professional-grade heat retention by reflecting up to 90% of body heat. Designed for adults with a generous 84" x 55" size, these lightweight, waterproof, and windproof blankets pack down small for seamless integration into any emergency or outdoor kit. Durable polyester construction ensures versatility for camping, hiking, marathons, or first aid, while machine washable fabric guarantees easy maintenance. Trusted by thousands with a 4.7-star rating, this space blanket set is a must-have for proactive professionals who value safety and preparedness.

Specifications

ASIN	B07GLCYR5S
Additional Features	Waterproof
Age Range Description	Adult
Amazon Bestseller	#768,742 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #732 in Camping Blankets
Blanket Form	Emergency Blanket
Brand Name	QIO CHUANG
Color	orange
Customer Reviews	4.7 4.7 out of 5 stars (7,993)
Fabric Type	Mylar
Global Trade Identification Number	00707516010928
Item Dimensions L x W	2.13L x 1.4W m
Item Weight	0.52 Pounds
Manufacturer	QIO CHUANG
Manufacturer Part Number	JIJIU-4018
Material Type	Polyethylene (PE)
Model Number	JIJIU-4018
Pattern	Stars
Product Care Instructions	Machine Wash
Style Name	Compact
Theme	Space
UPC	707516010928
Unit Count	4 Count
Water Resistance Level	Waterproof

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

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