diff --git a/.travis.yml b/.travis.yml
index 2e42d7bc0..71c988994 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -40,6 +40,25 @@ matrix:
     - env: EXTRA_ARGS="--no-default-features"
       script: cargo build $EXTRA_ARGS
 
+    # Ensure crate compiles with "nightly" feature (i.e. for allocation w\ no_std)
+    - env: EXTRA_ARGS="--no-default-features --features nightly"
+      script: cargo build $EXTRA_ARGS
+      rust: nightly
+
+    # Ensure crate compiles with both "std" and "nightly" features
+    - env: EXTRA_ARGS="--no-default-features --features std,nightly"
+      script: cargo build $EXTRA_ARGS
+      rust: nightly
+
+  # Allow "nightly" feature to fail (so we aren't blocked on upstream nightly changes)
+  allow_failures:
+    - env: EXTRA_ARGS="--no-default-features --features nightly"
+      script: cargo build $EXTRA_ARGS
+      rust: nightly
+    - env: EXTRA_ARGS="--no-default-features --features std,nightly"
+      script: cargo build $EXTRA_ARGS
+      rust: nightly
+
 before_install: set -e
 
 install:
diff --git a/Cargo.toml b/Cargo.toml
index d6b605009..c515369c5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,6 @@ documentation = "https://carllerche.github.io/bytes/bytes"
 homepage      = "https://github.com/carllerche/bytes"
 repository    = "https://github.com/carllerche/bytes"
 readme        = "README.md"
-categories    = ["no-std"]
 keywords      = ["buffers", "zero-copy", "io"]
 exclude       = [
     ".gitignore",
@@ -18,7 +17,7 @@ exclude       = [
     "bench/**/*",
     "test/**/*"
 ]
-categories = ["network-programming", "data-structures"]
+categories = ["network-programming", "data-structures", "no-std"]
 
 [dependencies]
 byteorder = "1.0.0"
@@ -32,5 +31,7 @@ optional = true
 serde_test = "1.0"
 
 [features]
+allocator = []
 default = ["std"]
-std = ["iovec"]
+nightly = ["allocator"]
+std = ["allocator", "iovec"]
diff --git a/src/buf/buf.rs b/src/buf/buf.rs
index 6b9ae457c..da4c9a11a 100644
--- a/src/buf/buf.rs
+++ b/src/buf/buf.rs
@@ -1,5 +1,5 @@
 use super::{IntoBuf, Take, Reader, Iter, Chain};
-#[cfg(feature = "std")]
+#[cfg(feature = "allocator")]
 use super::FromBuf;
 
 use byteorder::ByteOrder;
@@ -11,6 +11,9 @@ use core::{cmp, ptr};
 #[cfg(feature = "std")]
 use std::io;
 
+#[allow(unused_imports)]
+use prelude::*;
+
 /// Read bytes from a buffer.
 ///
 /// A buffer stores bytes in memory such that read operations are infallible.
@@ -528,7 +531,7 @@ pub trait Buf {
     ///
     /// assert_eq!(vec, &b"hello world"[..]);
     /// ```
-    #[cfg(feature = "std")]
+    #[cfg(feature = "allocator")]
     fn collect<B>(self) -> B
         where Self: Sized,
               B: FromBuf,
@@ -681,7 +684,7 @@ impl<'a, T: Buf + ?Sized> Buf for &'a mut T {
     }
 }
 
-#[cfg(feature = "std")]
+#[cfg(feature = "allocator")]
 impl<T: Buf + ?Sized> Buf for Box<T> {
     fn remaining(&self) -> usize {
         (**self).remaining()
diff --git a/src/buf/buf_mut.rs b/src/buf/buf_mut.rs
index c480be823..95c510ae3 100644
--- a/src/buf/buf_mut.rs
+++ b/src/buf/buf_mut.rs
@@ -1,5 +1,6 @@
 use super::{IntoBuf, Writer};
 use byteorder::ByteOrder;
+
 #[cfg(feature = "std")]
 use iovec::IoVec;
 
@@ -8,6 +9,9 @@ use core::{cmp, ptr, usize};
 #[cfg(feature = "std")]
 use std::io;
 
+#[allow(unused_imports)]
+use prelude::*;
+
 /// A trait for values that provide sequential write access to bytes.
 ///
 /// Write bytes to a buffer
@@ -660,7 +664,7 @@ impl<'a, T: BufMut + ?Sized> BufMut for &'a mut T {
     }
 }
 
-#[cfg(feature = "std")]
+#[cfg(feature = "allocator")]
 impl<T: BufMut + ?Sized> BufMut for Box<T> {
     fn remaining_mut(&self) -> usize {
         (**self).remaining_mut()
@@ -709,7 +713,7 @@ impl<T: AsMut<[u8]> + AsRef<[u8]>> BufMut for io::Cursor<T> {
     }
 }
 
-#[cfg(feature = "std")]
+#[cfg(feature = "allocator")]
 impl BufMut for Vec<u8> {
     #[inline]
     fn remaining_mut(&self) -> usize {
diff --git a/src/buf/from_buf.rs b/src/buf/from_buf.rs
index 55f5cef31..ea06eb34e 100644
--- a/src/buf/from_buf.rs
+++ b/src/buf/from_buf.rs
@@ -1,5 +1,8 @@
 use {Buf, BufMut, IntoBuf, Bytes, BytesMut};
 
+#[allow(unused_imports)]
+use prelude::*;
+
 /// Conversion from a [`Buf`]
 ///
 /// Implementing `FromBuf` for a type defines how it is created from a buffer.
diff --git a/src/buf/mod.rs b/src/buf/mod.rs
index 335f51962..751b063ed 100644
--- a/src/buf/mod.rs
+++ b/src/buf/mod.rs
@@ -18,7 +18,7 @@
 
 mod buf;
 mod buf_mut;
-#[cfg(feature = "std")]
+#[cfg(feature = "allocator")]
 mod from_buf;
 mod chain;
 mod into_buf;
@@ -29,7 +29,7 @@ mod writer;
 
 pub use self::buf::Buf;
 pub use self::buf_mut::BufMut;
-#[cfg(feature = "std")]
+#[cfg(feature = "allocator")]
 pub use self::from_buf::FromBuf;
 pub use self::chain::Chain;
 pub use self::into_buf::IntoBuf;
diff --git a/src/bytes.rs b/src/bytes.rs
index 721d5f477..97a385e32 100644
--- a/src/bytes.rs
+++ b/src/bytes.rs
@@ -1,4 +1,7 @@
-use {IntoBuf, Buf, BufMut};
+#[cfg(feature = "std")]
+use {IntoBuf, Buf};
+use BufMut;
+#[cfg(feature = "std")]
 use buf::Iter;
 use debug;
 
@@ -11,6 +14,9 @@ use core::iter::{FromIterator, Iterator};
 #[cfg(feature = "std")]
 use std::io;
 
+#[allow(unused_imports)]
+use prelude::*;
+
 /// A reference counted contiguous slice of memory.
 ///
 /// `Bytes` is an efficient container for storing and operating on contiguous
@@ -751,6 +757,7 @@ impl Bytes {
     }
 }
 
+#[cfg(feature = "std")]
 impl IntoBuf for Bytes {
     type Buf = io::Cursor<Self>;
 
@@ -759,6 +766,7 @@ impl IntoBuf for Bytes {
     }
 }
 
+#[cfg(feature = "std")]
 impl<'a> IntoBuf for &'a Bytes {
     type Buf = io::Cursor<Self>;
 
@@ -889,6 +897,7 @@ impl Borrow<[u8]> for Bytes {
     }
 }
 
+#[cfg(feature = "std")]
 impl IntoIterator for Bytes {
     type Item = u8;
     type IntoIter = Iter<io::Cursor<Bytes>>;
@@ -898,6 +907,7 @@ impl IntoIterator for Bytes {
     }
 }
 
+#[cfg(feature = "std")]
 impl<'a> IntoIterator for &'a Bytes {
     type Item = u8;
     type IntoIter = Iter<io::Cursor<&'a Bytes>>;
@@ -1373,6 +1383,7 @@ impl BufMut for BytesMut {
     }
 }
 
+#[cfg(feature = "std")]
 impl IntoBuf for BytesMut {
     type Buf = io::Cursor<Self>;
 
@@ -1381,6 +1392,7 @@ impl IntoBuf for BytesMut {
     }
 }
 
+#[cfg(feature = "std")]
 impl<'a> IntoBuf for &'a BytesMut {
     type Buf = io::Cursor<&'a BytesMut>;
 
@@ -1540,6 +1552,7 @@ impl Clone for BytesMut {
     }
 }
 
+#[cfg(feature = "std")]
 impl IntoIterator for BytesMut {
     type Item = u8;
     type IntoIter = Iter<io::Cursor<BytesMut>>;
@@ -1549,6 +1562,7 @@ impl IntoIterator for BytesMut {
     }
 }
 
+#[cfg(feature = "std")]
 impl<'a> IntoIterator for &'a BytesMut {
     type Item = u8;
     type IntoIter = Iter<io::Cursor<&'a BytesMut>>;
diff --git a/src/lib.rs b/src/lib.rs
index 8227e8011..6282189ec 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -71,9 +71,12 @@
 #![deny(warnings, missing_docs, missing_debug_implementations)]
 #![doc(html_root_url = "https://docs.rs/bytes/0.4")]
 #![cfg_attr(not(feature = "std"), no_std)]
+#![cfg_attr(feature = "nightly", feature(alloc))]
 
 extern crate byteorder;
 
+#[cfg(feature = "nightly")]
+extern crate alloc;
 #[cfg(feature = "std")]
 extern crate core;
 #[cfg(feature = "std")]
@@ -93,12 +96,12 @@ pub use buf::{
     Take,
 };
 
-#[cfg(feature = "std")]
+#[cfg(feature = "allocator")]
 mod bytes;
-#[cfg(feature = "std")]
+#[cfg(feature = "allocator")]
 mod debug;
 
-#[cfg(feature = "std")]
+#[cfg(feature = "allocator")]
 pub use bytes::{Bytes, BytesMut};
 
 pub use byteorder::{ByteOrder, BigEndian, LittleEndian};
@@ -107,3 +110,15 @@ pub use byteorder::{ByteOrder, BigEndian, LittleEndian};
 #[cfg(feature = "serde")]
 #[doc(hidden)]
 pub mod serde;
+
+/// Custom (internal-only) prelude for this module
+mod prelude {
+    #[cfg(feature = "nightly")]
+    pub use alloc::boxed::Box;
+
+    #[cfg(feature = "nightly")]
+    pub use alloc::string::String;
+
+    #[cfg(feature = "nightly")]
+    pub use alloc::vec::Vec;
+}