diff --git a/examples/example.js b/examples/example.js
index 546a2dc..2035756 100644
--- a/examples/example.js
+++ b/examples/example.js
@@ -92,3 +92,18 @@ const validAddress = '10 Downing Street';
 const invalidAddress = 'bwahahaha';
 console.log(`"10 Downing Street" is a valid address - ${t(validAddress).isAddress}`); // true
 console.log(`"bwahahaha" is a valid address - ${t(invalidAddress).isAddress}`); // false
+
+const string = 'someString';
+const stringObject = new String('MyString'); // eslint-disable-line no-new-wrappers
+console.log(`String literal test: ${t(string).isString}`);
+console.log(`String object test: ${t(stringObject).isString}`);
+
+const booleanLiteral = false;
+const booleanObject = new Boolean(123); // eslint-disable-line no-new-wrappers
+console.log(`Boolean literal test: ${t(booleanLiteral).isBoolean}`);
+console.log(`Boolean object test: ${t(booleanObject).isBoolean}`);
+
+const numberLiteral = 23;
+const numberObject = new Number(3241232352352); // eslint-disable-line no-new-wrappers
+console.log(`Number literal test: ${t(numberLiteral).isNumber}`);
+console.log(`Number object test: ${t(numberObject).isNumber}`);
diff --git a/src/typy.js b/src/typy.js
index 7bcdbad..ac227bb 100644
--- a/src/typy.js
+++ b/src/typy.js
@@ -69,7 +69,12 @@ class Typy {
   }
 
   get isBoolean() {
-    if (typeof this.input === typeof true) return true;
+    if (
+      typeof this.input === typeof true ||
+      Object.prototype.toString.call(this.input) === '[object Boolean]'
+    ) {
+      return true;
+    }
     return false;
   }
 
@@ -111,7 +116,12 @@ class Typy {
   }
 
   get isString() {
-    if (typeof this.input === 'string') return true;
+    if (
+      typeof this.input === 'string' ||
+      Object.prototype.toString.call(this.input) === '[object String]'
+    ) {
+      return true;
+    }
     return false;
   }
 
@@ -121,7 +131,8 @@ class Typy {
   }
 
   get isNumber() {
-    if (Number.isFinite(this.input)) return true;
+    if (Number.isFinite(this.input)
+    || Object.prototype.toString.call(this.input) === '[object Number]') return true;
     return false;
   }
 
diff --git a/test/typy.test.js b/test/typy.test.js
index 889cc0e..ff0b6a9 100644
--- a/test/typy.test.js
+++ b/test/typy.test.js
@@ -76,7 +76,7 @@ describe('Typy', () => {
 
   describe('Truthy/Falsy', () => {
     test('should test if object is truthy', () => {
-      const truthyValues = ['hey', 11, {}, { yo: 'yoyo' }, true, [], [1, 2]];
+      const truthyValues = ['hey', 11, {}, { yo: 'yoyo' }, true, [], [1, 2], new Boolean(23)]; // eslint-disable-line no-new-wrappers
       truthyValues.map((value) => {
         expect(t(value).isTruthy === true).toBeTruthy();
         expect(t(value).isFalsy === false).toBeTruthy();
@@ -113,7 +113,9 @@ describe('Typy', () => {
 
     test('should test if type is string', () => {
       const obj = 'hello';
+      const stringObject = new String('myStringObject'); // eslint-disable-line no-new-wrappers
       expect(t(obj).isString === true).toBeTruthy();
+      expect(t(stringObject).isString === true).toBeTruthy();
     });
 
     test('should test if string is empty string', () => {
@@ -138,6 +140,10 @@ describe('Typy', () => {
       expect(t(num).isNumber === true).toBeTruthy();
       num = 'number';
       expect(t(num).isNumber === false).toBeTruthy();
+      num = Infinity;
+      expect(t(num).isNumber === true).toBeTruthy();
+      num = new Number(23523452345); // eslint-disable-line no-new-wrappers
+      expect(t(num).isNumber === true).toBeTruthy();
     });
 
     test('should test if type is Boolean', () => {